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Aircraft control device, a corresponding aircraft, and a method of controlling an aircraft

  • US 10,562,612 B2
  • Filed: 10/03/2017
  • Issued: 02/18/2020
  • Est. Priority Date: 10/03/2016
  • Status: Active Grant
First Claim
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1. A control device for controlling an aircraft, the control device comprising at least one motor-driven trim actuator of active type, the trim actuator including at least one electric motor, at least one electronic power circuit for electrically powering the at least one electric motor, and speed reduction means for reducing the speed of rotation of an axis of rotation of the at least one electric motor, the speed reduction means serving to drive rotation of an outlet shaft of the trim actuator at an outlet speed of rotation that is less than an inlet speed of rotation of the axis of rotation of the at least one electric motor, wherein the control device implements three distinct servo-control loops that are nested in one another, the three servo-control loops being formed by an electric current servo-control loop, a speed servo-control loop, and a force servo-control loop, and wherein:

  • the electric current servo-control loop comprises;

    at least one electric current sensor arranged at the input of the at least one electric motor in order to measure an electric power supply current delivered by the at least one electronic power circuit; and

    at least one first position sensor arranged on the axis of rotation of the at least one electric motor in order to measure an angular position of the axis of rotation relative to a stationary frame of the trim actuator;

    the speed servo-control loop comprises;

    at least one second position sensor arranged on the outlet shaft of the trim actuator to measure an angular position of the outlet shaft relative to the stationary frame of the trim actuator; and

    an output branch connected to an input of the electric current servo-control loop; and

    the force servo-control loop comprises;

    at least one force sensor arranged at least one flight control member to measure an external force exerted on the at least one flight control member; and

    an output line connected to an input of the speed servo-control loop.

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